I love the echo products and I use them everyday to control lights, TV and thermostat.
I will get an echo show when I can get it at a discount and most likely use it in the kitchen. Once you start using voice to turn lights on and off it becomes habit and the way I most often expect to control my lights and TV. We are not quite there yet with capabilities and integration, but it keeps getting better as time goes on.
You really need an echo in every room so you don't need to talk loud so Alexa can hear you. It doesn't feel very natural. When I get up in the middle of the night, the echo in the bedroom is to far away to hear me without speaking loud. I am working towards getting echo in every room. I look forwards to next Black Friday! I want to be able to answer my Ring Video Door Bell with this!